def get_friends_user_id_display_name(cls, user_id):
friend_list = []
list = cls.get_friends_user_id(user_id)
if list:
for friend_id in list:
friend = EnkiModelDisplayName.get_user_id_display_name(
EnkiModelDisplayName.get_by_user_id_current(friend_id))
friend_list.append(friend)
return friend_list
